Bulk material unloader

Details Bulk material unloader Bulk material unloader

1979-06-27

1981-05-05

Paperner, L. J.

Material or article handling

Marine loading or unloading system

Marine vessel to marine vessel

414624, 414399, 414786, 212265, B63B 2700, B66B 920

Patent

active

042655790

ABSTRACT:
A bulk material unloader in which a clamshell bucket is suspended from a boom which is luffed from a position over the material to be unloaded through the vertical to a position over a bulk material receiving hopper. The hoists and/or the anchors for the bucket hold and close ropes are mounted on the unloader base on the opposite side of the hopper from the boom pivot such that the suspended length of the hold and close ropes is increased as the boom is luffed through the vertical and the bucket is thereby lowered into the hopper with the hoists remaining inactive until the bucket is in position to be opened and discharged with minimum dusting effect.

REFERENCES:
patent: 376655 (1888-01-01), Hulett
patent: 1010291 (1911-11-01), McIntyre
patent: 1193587 (1916-08-01), Miller
patent: 3091353 (1963-05-01), Allard
patent: 3429453 (1969-02-01), Kahle et al.
patent: 3866769 (1975-02-01), Morey et al.

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